Running the current master tree I reproducibly get the following softlockup when running xfstests 078 on a tcm_loop/iblock device: [ 968.113575] BUG: soft lockup - CPU#0 stuck for 22s! [LIO_iblock:2133] [ 968.116635] Modules linked in: [ 968.116635] CPU 0 [ 968.116635] Modules linked in: [ 968.116635] [ 968.116635] Pid: 2133, comm: LIO_iblock Not tainted 3.2.0-rc4+ #76 Bochs Bochs [ 968.116635] RIP: 0010:[<ffffffff819a2618>] [<ffffffff819a2618>] _raw_spin_unlock_irqrestore+0x8/0x10 [ 968.116635] RSP: 0018:ffff880058567e40 EFLAGS: 00000246 [ 968.116635] RAX: 0000000000000246 RBX: 0000000000000001 RCX: 000000000000000b [ 968.116635] RDX: 0000000000000b0b RSI: 0000000000000246 RDI: ffff88005858c894 [ 968.116635] RBP: ffff880058567e40 R08: ffff88005847c800 R09: ffff88005a5c0350 [ 968.116635] R10: 0000000000000001 R11: 0000000000000838 R12: 0000000000000029 [ 968.116635] R13: ffff880058567e40 R14: ffff88005847c800 R15: ffff88005a5c0350 [ 968.116635] FS: 0000000000000000(0000) GS:ffff88005d800000(0000) knlGS:0000000000000000 [ 968.116635] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 968.116635] CR2: 00000000097cb000 CR3: 0000000058599000 CR4: 00000000000006f0 [ 968.116635] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 968.116635] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 968.116635] Process LIO_iblock (pid: 2133, threadinfo ffff880058566000, task ffff880058490740) [ 968.116635] Stack: [ 968.116635] ffff880058567ee0 ffffffff8175465c ffff880058567e60 ffff8800534875a0 [ 968.116635] ffff880058567ea0 ffff880058490740 ffff88005858c898 ffff88005858c894 [ 968.116635] ffff880058490740 0000000000000000 ffff880058490740 ffffffff810a8840 [ 968.116635] Call Trace: [ 968.116635] [<ffffffff8175465c>] transport_processing_thread+0x13c/0x4a0 [ 968.116635] [<ffffffff810a8840>] ? abort_exclusive_wait+0xb0/0xb0 [ 968.116635] [<ffffffff81754520>] ? transport_handle_cdb_direct+0xb0/0xb0 [ 968.116635] [<ffffffff810a7fe7>] kthread+0x87/0x90 [ 968.116635] [<ffffffff819ab1f4>] kernel_thread_helper+0x4/0x10 [ 968.116635] [<ffffffff810a7f60>] ? kthread_worker_fn+0x190/0x190 [ 968.116635] [<ffffffff819ab1f0>] ? gs_change+0xb/0xb [ 968.116635] Code: c1 07 0f b6 d4 38 c2 74 13 66 2e 0f 1f 84 00 00 00 00 00 f3 90 0f b6 07 38 d0 75 f7 5d c3 0f 1f 44 00 00 55 48 89 e5 fe 07 56 9d <5d> c3 66 0f 1f 44 00 00 55 ba ff ff ff ff 48 89 e5 3e 0f c1 17 -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
